Mahabharata 1.70.10

विवस्वतः सुतो जज्ञे यमो वैवस्वतः प्रभुःमार्तण्डश्च यमस्यापि पुत्रो राजन्नजायत

vivasvataḥ suto jajñe yamo vaivasvataḥ prabhuḥmārtaṇḍaśca yamasyāpi putro rājannajāyata

Our plain-language meaning of this verse is waiting for scholar review.